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author | Lorenz Meier <lm@inf.ethz.ch> | 2013-09-22 12:04:10 +0200 |
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committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-09-22 12:04:10 +0200 |
commit | 3189b4a9b4b1817e9f908a3edeeda83181b71450 (patch) | |
tree | 42767f912166a698f35b80fd9ace248949f02da2 /src/drivers/gps/ubx.cpp | |
parent | ebd16975d01b3a2200e94e164199b88527a27e3c (diff) | |
parent | 669d4c6dd26cec44196f755b223da588439816c6 (diff) | |
download | px4-firmware-3189b4a9b4b1817e9f908a3edeeda83181b71450.tar.gz px4-firmware-3189b4a9b4b1817e9f908a3edeeda83181b71450.tar.bz2 px4-firmware-3189b4a9b4b1817e9f908a3edeeda83181b71450.zip |
Merge branch 'master' of github.com:PX4/Firmware
Diffstat (limited to 'src/drivers/gps/ubx.cpp')
-rw-r--r-- | src/drivers/gps/ubx.cpp | 58 |
1 files changed, 34 insertions, 24 deletions
diff --git a/src/drivers/gps/ubx.cpp b/src/drivers/gps/ubx.cpp index ba5d14cc4..0b25b379f 100644 --- a/src/drivers/gps/ubx.cpp +++ b/src/drivers/gps/ubx.cpp @@ -60,13 +60,14 @@ #define UBX_CONFIG_TIMEOUT 200 // ms, timeout for waiting ACK #define UBX_PACKET_TIMEOUT 2 // ms, if now data during this delay assume that full update received #define UBX_WAIT_BEFORE_READ 20 // ms, wait before reading to save read() calls +#define DISABLE_MSG_INTERVAL 1000000 // us, try to disable message with this interval UBX::UBX(const int &fd, struct vehicle_gps_position_s *gps_position) : _fd(fd), _gps_position(gps_position), _configured(false), _waiting_for_ack(false), - _disable_cmd_counter(0) + _disable_cmd_last(0) { decode_init(); } @@ -191,35 +192,35 @@ UBX::configure(unsigned &baudrate) configure_message_rate(UBX_CLASS_NAV, UBX_MESSAGE_NAV_POSLLH, 1); if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) { - warnx("ubx: msg rate configuration failed: NAV POSLLH\n"); + warnx("ubx: msg rate configuration failed: NAV POSLLH"); return 1; } configure_message_rate(UBX_CLASS_NAV, UBX_MESSAGE_NAV_TIMEUTC, 1); if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) { - warnx("ubx: msg rate configuration failed: NAV TIMEUTC\n"); + warnx("ubx: msg rate configuration failed: NAV TIMEUTC"); return 1; } configure_message_rate(UBX_CLASS_NAV, UBX_MESSAGE_NAV_SOL, 1); if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) { - warnx("ubx: msg rate configuration failed: NAV SOL\n"); + warnx("ubx: msg rate configuration failed: NAV SOL"); return 1; } configure_message_rate(UBX_CLASS_NAV, UBX_MESSAGE_NAV_VELNED, 1); if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) { - warnx("ubx: msg rate configuration failed: NAV VELNED\n"); + warnx("ubx: msg rate configuration failed: NAV VELNED"); return 1; } configure_message_rate(UBX_CLASS_NAV, UBX_MESSAGE_NAV_SVINFO, 5); if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) { - warnx("ubx: msg rate configuration failed: NAV SVINFO\n"); + warnx("ubx: msg rate configuration failed: NAV SVINFO"); return 1; } @@ -271,11 +272,18 @@ UBX::receive(unsigned timeout) if (ret < 0) { /* something went wrong when polling */ + warnx("ubx: poll error"); return -1; } else if (ret == 0) { /* return success after short delay after receiving a packet or timeout after long delay */ - return handled ? 1 : -1; + if (handled) { + return 1; + + } else { + warnx("ubx: timeout - no messages"); + return -1; + } } else if (ret > 0) { /* if we have new data from GPS, go handle it */ @@ -292,8 +300,6 @@ UBX::receive(unsigned timeout) /* pass received bytes to the packet decoder */ for (int i = 0; i < count; i++) { if (parse_char(buf[i]) > 0) { - /* return to configure during configuration or to the gps driver during normal work - * if a packet has arrived */ if (handle_message() > 0) handled = true; } @@ -303,6 +309,7 @@ UBX::receive(unsigned timeout) /* abort after timeout if no useful packets received */ if (time_started + timeout * 1000 < hrt_absolute_time()) { + warnx("ubx: timeout - no useful messages"); return -1; } } @@ -453,16 +460,16 @@ UBX::handle_message() timeinfo.tm_min = packet->min; timeinfo.tm_sec = packet->sec; time_t epoch = mktime(&timeinfo); - + #ifndef CONFIG_RTC - //Since we lack a hardware RTC, set the system time clock based on GPS UTC - //TODO generalize this by moving into gps.cpp? - timespec ts; - ts.tv_sec = epoch; - ts.tv_nsec = packet->time_nanoseconds; - clock_settime(CLOCK_REALTIME,&ts); + //Since we lack a hardware RTC, set the system time clock based on GPS UTC + //TODO generalize this by moving into gps.cpp? + timespec ts; + ts.tv_sec = epoch; + ts.tv_nsec = packet->time_nanoseconds; + clock_settime(CLOCK_REALTIME, &ts); #endif - + _gps_position->time_gps_usec = (uint64_t)epoch * 1000000; //TODO: test this _gps_position->time_gps_usec += (uint64_t)(packet->time_nanoseconds * 1e-3f); _gps_position->timestamp_time = hrt_absolute_time(); @@ -564,10 +571,13 @@ UBX::handle_message() if (ret == 0) { /* message not handled */ - warnx("ubx: unknown message received: 0x%02x-0x%02x\n", (unsigned)_message_class, (unsigned)_message_id); + warnx("ubx: unknown message received: 0x%02x-0x%02x", (unsigned)_message_class, (unsigned)_message_id); + + hrt_abstime t = hrt_absolute_time(); - if ((_disable_cmd_counter = _disable_cmd_counter++ % 10) == 0) { + if (t > _disable_cmd_last + DISABLE_MSG_INTERVAL) { /* don't attempt for every message to disable, some might not be disabled */ + _disable_cmd_last = t; warnx("ubx: disabling message 0x%02x-0x%02x", (unsigned)_message_class, (unsigned)_message_id); configure_message_rate(_message_class, _message_id, 0); } @@ -640,7 +650,7 @@ UBX::add_checksum_to_message(uint8_t *message, const unsigned length) ck_b = ck_b + ck_a; } - /* The checksum is written to the last to bytes of a message */ + /* the checksum is written to the last to bytes of a message */ message[length - 2] = ck_a; message[length - 1] = ck_b; } @@ -669,17 +679,17 @@ UBX::send_config_packet(const int &fd, uint8_t *packet, const unsigned length) { ssize_t ret = 0; - /* Calculate the checksum now */ + /* calculate the checksum now */ add_checksum_to_message(packet, length); const uint8_t sync_bytes[] = {UBX_SYNC1, UBX_SYNC2}; - /* Start with the two sync bytes */ + /* start with the two sync bytes */ ret += write(fd, sync_bytes, sizeof(sync_bytes)); ret += write(fd, packet, length); if (ret != (int)length + (int)sizeof(sync_bytes)) // XXX is there a neater way to get rid of the unsigned signed warning? - warnx("ubx: config write fail"); + warnx("ubx: configuration write fail"); } void @@ -696,7 +706,7 @@ UBX::send_message(uint8_t msg_class, uint8_t msg_id, void *msg, uint8_t size) add_checksum((uint8_t *)&header.msg_class, sizeof(header) - 2, ck_a, ck_b); add_checksum((uint8_t *)msg, size, ck_a, ck_b); - // Configure receive check + /* configure ACK check */ _message_class_needed = msg_class; _message_id_needed = msg_id; |